54148 E60np Nickle Pearl 30/40 Double Cylinder

They have precision, mushroom pin and paracentric keyway whichoffer comprehensive anti-pick protection, also they have a hardenedsteel anti-drill spring & pin protection with 8 anti-drill pinsin every keyway. For emergency and convenience feature theoutside key can operate the lock with internal key in place.

How to measure a Euro Profile Cylinder:

A Distance from one end of cylinder to centre of cam B Distance from other end of cylinder to centre of cam C Overall length of cylinder